1 /* 2 * QEMU Guest Agent win32-specific command implementations 3 * 4 * Copyright IBM Corp. 2012 5 * 6 * Authors: 7 * Michael Roth <mdroth@linux.vnet.ibm.com> 8 * Gal Hammer <ghammer@redhat.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 */ 13 #include "qemu/osdep.h" 14 15 #include <wtypes.h> 16 #include <powrprof.h> 17 #include <winsock2.h> 18 #include <ws2tcpip.h> 19 #include <iptypes.h> 20 #include <iphlpapi.h> 21 #include <winioctl.h> 22 #include <ntddscsi.h> 23 #include <setupapi.h> 24 #include <cfgmgr32.h> 25 #include <initguid.h> 26 #include <devpropdef.h> 27 #include <lm.h> 28 #include <wtsapi32.h> 29 #include <wininet.h> 30 31 #include "guest-agent-core.h" 32 #include "vss-win32.h" 33 #include "qga-qapi-commands.h" 34 #include "qapi/error.h" 35 #include "qapi/qmp/qerror.h" 36 #include "qemu/queue.h" 37 #include "qemu/host-utils.h" 38 #include "qemu/base64.h" 39 #include "commands-common.h" 40 41 /* 42 * The following should be in devpkey.h, but it isn't. The key names were 43 * prefixed to avoid (future) name clashes. Once the definitions get into 44 * mingw the following lines can be removed. 45 */ 46 DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5, 47 0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10); 48 /* DEVPROP_TYPE_STRING */ 49 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c, 50 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3); 51 /* DEVPROP_TYPE_STRING_LIST */ 52 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d, 53 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2); 54 /* DEVPROP_TYPE_FILETIME */ 55 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d, 56 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3); 57 /* DEVPROP_TYPE_STRING */ 58 /* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */ 59 #ifndef CM_Get_DevNode_Property 60 #pragma GCC diagnostic push 61 #pragma GCC diagnostic ignored "-Wredundant-decls" 62 CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW( 63 DEVINST dnDevInst, 64 CONST DEVPROPKEY * PropertyKey, 65 DEVPROPTYPE * PropertyType, 66 PBYTE PropertyBuffer, 67 PULONG PropertyBufferSize, 68 ULONG ulFlags 69 ); 70 #define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW 71 #pragma GCC diagnostic pop 72 #endif 73 74 #ifndef SHTDN_REASON_FLAG_PLANNED 75 #define SHTDN_REASON_FLAG_PLANNED 0x80000000 76 #endif 77 78 /* multiple of 100 nanoseconds elapsed between windows baseline 79 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ 80 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ 81 (365 * (1970 - 1601) + \ 82 (1970 - 1601) / 4 - 3)) 83 84 #define INVALID_SET_FILE_POINTER ((DWORD)-1) 85 86 struct GuestFileHandle { 87 int64_t id; 88 HANDLE fh; 89 QTAILQ_ENTRY(GuestFileHandle) next; 90 }; 91 92 static struct { 93 QTAILQ_HEAD(, GuestFileHandle) filehandles; 94 } guest_file_state = { 95 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 96 }; 97 98 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) 99 100 typedef struct OpenFlags { 101 const char *forms; 102 DWORD desired_access; 103 DWORD creation_disposition; 104 } OpenFlags; 105 static OpenFlags guest_file_open_modes[] = { 106 {"r", GENERIC_READ, OPEN_EXISTING}, 107 {"rb", GENERIC_READ, OPEN_EXISTING}, 108 {"w", GENERIC_WRITE, CREATE_ALWAYS}, 109 {"wb", GENERIC_WRITE, CREATE_ALWAYS}, 110 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS }, 111 {"r+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 112 {"rb+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 113 {"r+b", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 114 {"w+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 115 {"wb+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 116 {"w+b", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 117 {"a+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 118 {"ab+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 119 {"a+b", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS } 120 }; 121 122 #define debug_error(msg) do { \ 123 char *suffix = g_win32_error_message(GetLastError()); \ 124 g_debug("%s: %s", (msg), suffix); \ 125 g_free(suffix); \ 126 } while (0) 127 128 static OpenFlags *find_open_flag(const char *mode_str) 129 { 130 int mode; 131 Error **errp = NULL; 132 133 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 134 OpenFlags *flags = guest_file_open_modes + mode; 135 136 if (strcmp(flags->forms, mode_str) == 0) { 137 return flags; 138 } 139 } 140 141 error_setg(errp, "invalid file open mode '%s'", mode_str); 142 return NULL; 143 } 144 145 static int64_t guest_file_handle_add(HANDLE fh, Error **errp) 146 { 147 GuestFileHandle *gfh; 148 int64_t handle; 149 150 handle = ga_get_fd_handle(ga_state, errp); 151 if (handle < 0) { 152 return -1; 153 } 154 gfh = g_new0(GuestFileHandle, 1); 155 gfh->id = handle; 156 gfh->fh = fh; 157 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 158 159 return handle; 160 } 161 162 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 163 { 164 GuestFileHandle *gfh; 165 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) { 166 if (gfh->id == id) { 167 return gfh; 168 } 169 } 170 error_setg(errp, "handle '%" PRId64 "' has not been found", id); 171 return NULL; 172 } 173 174 static void handle_set_nonblocking(HANDLE fh) 175 { 176 DWORD file_type, pipe_state; 177 file_type = GetFileType(fh); 178 if (file_type != FILE_TYPE_PIPE) { 179 return; 180 } 181 /* If file_type == FILE_TYPE_PIPE, according to MSDN 182 * the specified file is socket or named pipe */ 183 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL, 184 NULL, NULL, NULL, 0)) { 185 return; 186 } 187 /* The fd is named pipe fd */ 188 if (pipe_state & PIPE_NOWAIT) { 189 return; 190 } 191 192 pipe_state |= PIPE_NOWAIT; 193 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL); 194 } 195 196 int64_t qmp_guest_file_open(const char *path, bool has_mode, 197 const char *mode, Error **errp) 198 { 199 int64_t fd = -1; 200 HANDLE fh; 201 HANDLE templ_file = NULL; 202 DWORD share_mode = FILE_SHARE_READ; 203 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL; 204 LPSECURITY_ATTRIBUTES sa_attr = NULL; 205 OpenFlags *guest_flags; 206 GError *gerr = NULL; 207 wchar_t *w_path = NULL; 208 209 if (!has_mode) { 210 mode = "r"; 211 } 212 slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 213 guest_flags = find_open_flag(mode); 214 if (guest_flags == NULL) { 215 error_setg(errp, "invalid file open mode"); 216 goto done; 217 } 218 219 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr); 220 if (!w_path) { 221 goto done; 222 } 223 224 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr, 225 guest_flags->creation_disposition, flags_and_attr, 226 templ_file); 227 if (fh == INVALID_HANDLE_VALUE) { 228 error_setg_win32(errp, GetLastError(), "failed to open file '%s'", 229 path); 230 goto done; 231 } 232 233 /* set fd non-blocking to avoid common use cases (like reading from a 234 * named pipe) from hanging the agent 235 */ 236 handle_set_nonblocking(fh); 237 238 fd = guest_file_handle_add(fh, errp); 239 if (fd < 0) { 240 CloseHandle(fh); 241 error_setg(errp, "failed to add handle to qmp handle table"); 242 goto done; 243 } 244 245 slog("guest-file-open, handle: % " PRId64, fd); 246 247 done: 248 if (gerr) { 249 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 250 g_error_free(gerr); 251 } 252 g_free(w_path); 253 return fd; 254 } 255 256 void qmp_guest_file_close(int64_t handle, Error **errp) 257 { 258 bool ret; 259 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 260 slog("guest-file-close called, handle: %" PRId64, handle); 261 if (gfh == NULL) { 262 return; 263 } 264 ret = CloseHandle(gfh->fh); 265 if (!ret) { 266 error_setg_win32(errp, GetLastError(), "failed close handle"); 267 return; 268 } 269 270 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 271 g_free(gfh); 272 } 273 274 static void acquire_privilege(const char *name, Error **errp) 275 { 276 HANDLE token = NULL; 277 TOKEN_PRIVILEGES priv; 278 Error *local_err = NULL; 279 280 if (OpenProcessToken(GetCurrentProcess(), 281 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) 282 { 283 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { 284 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 285 "no luid for requested privilege"); 286 goto out; 287 } 288 289 priv.PrivilegeCount = 1; 290 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 291 292 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { 293 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 294 "unable to acquire requested privilege"); 295 goto out; 296 } 297 298 } else { 299 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 300 "failed to open privilege token"); 301 } 302 303 out: 304 if (token) { 305 CloseHandle(token); 306 } 307 error_propagate(errp, local_err); 308 } 309 310 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, 311 Error **errp) 312 { 313 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); 314 if (!thread) { 315 error_setg(errp, QERR_QGA_COMMAND_FAILED, 316 "failed to dispatch asynchronous command"); 317 } 318 } 319 320 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 321 { 322 Error *local_err = NULL; 323 UINT shutdown_flag = EWX_FORCE; 324 325 slog("guest-shutdown called, mode: %s", mode); 326 327 if (!has_mode || strcmp(mode, "powerdown") == 0) { 328 shutdown_flag |= EWX_POWEROFF; 329 } else if (strcmp(mode, "halt") == 0) { 330 shutdown_flag |= EWX_SHUTDOWN; 331 } else if (strcmp(mode, "reboot") == 0) { 332 shutdown_flag |= EWX_REBOOT; 333 } else { 334 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode", 335 "'halt', 'powerdown', or 'reboot'"); 336 return; 337 } 338 339 /* Request a shutdown privilege, but try to shut down the system 340 anyway. */ 341 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 342 if (local_err) { 343 error_propagate(errp, local_err); 344 return; 345 } 346 347 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { 348 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 349 slog("guest-shutdown failed: %s", emsg); 350 error_setg_win32(errp, GetLastError(), "guest-shutdown failed"); 351 } 352 } 353 354 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh, 355 int64_t count, Error **errp) 356 { 357 GuestFileRead *read_data = NULL; 358 guchar *buf; 359 HANDLE fh = gfh->fh; 360 bool is_ok; 361 DWORD read_count; 362 363 buf = g_malloc0(count + 1); 364 is_ok = ReadFile(fh, buf, count, &read_count, NULL); 365 if (!is_ok) { 366 error_setg_win32(errp, GetLastError(), "failed to read file"); 367 } else { 368 buf[read_count] = 0; 369 read_data = g_new0(GuestFileRead, 1); 370 read_data->count = (size_t)read_count; 371 read_data->eof = read_count == 0; 372 373 if (read_count != 0) { 374 read_data->buf_b64 = g_base64_encode(buf, read_count); 375 } 376 } 377 g_free(buf); 378 379 return read_data; 380 } 381 382 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 383 bool has_count, int64_t count, 384 Error **errp) 385 { 386 GuestFileWrite *write_data = NULL; 387 guchar *buf; 388 gsize buf_len; 389 bool is_ok; 390 DWORD write_count; 391 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 392 HANDLE fh; 393 394 if (!gfh) { 395 return NULL; 396 } 397 fh = gfh->fh; 398 buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 399 if (!buf) { 400 return NULL; 401 } 402 403 if (!has_count) { 404 count = buf_len; 405 } else if (count < 0 || count > buf_len) { 406 error_setg(errp, "value '%" PRId64 407 "' is invalid for argument count", count); 408 goto done; 409 } 410 411 is_ok = WriteFile(fh, buf, count, &write_count, NULL); 412 if (!is_ok) { 413 error_setg_win32(errp, GetLastError(), "failed to write to file"); 414 slog("guest-file-write-failed, handle: %" PRId64, handle); 415 } else { 416 write_data = g_new0(GuestFileWrite, 1); 417 write_data->count = (size_t) write_count; 418 } 419 420 done: 421 g_free(buf); 422 return write_data; 423 } 424 425 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 426 GuestFileWhence *whence_code, 427 Error **errp) 428 { 429 GuestFileHandle *gfh; 430 GuestFileSeek *seek_data; 431 HANDLE fh; 432 LARGE_INTEGER new_pos, off_pos; 433 off_pos.QuadPart = offset; 434 BOOL res; 435 int whence; 436 Error *err = NULL; 437 438 gfh = guest_file_handle_find(handle, errp); 439 if (!gfh) { 440 return NULL; 441 } 442 443 /* We stupidly exposed 'whence':'int' in our qapi */ 444 whence = ga_parse_whence(whence_code, &err); 445 if (err) { 446 error_propagate(errp, err); 447 return NULL; 448 } 449 450 fh = gfh->fh; 451 res = SetFilePointerEx(fh, off_pos, &new_pos, whence); 452 if (!res) { 453 error_setg_win32(errp, GetLastError(), "failed to seek file"); 454 return NULL; 455 } 456 seek_data = g_new0(GuestFileSeek, 1); 457 seek_data->position = new_pos.QuadPart; 458 return seek_data; 459 } 460 461 void qmp_guest_file_flush(int64_t handle, Error **errp) 462 { 463 HANDLE fh; 464 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 465 if (!gfh) { 466 return; 467 } 468 469 fh = gfh->fh; 470 if (!FlushFileBuffers(fh)) { 471 error_setg_win32(errp, GetLastError(), "failed to flush file"); 472 } 473 } 474 475 static GuestDiskBusType win2qemu[] = { 476 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN, 477 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI, 478 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE, 479 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE, 480 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394, 481 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA, 482 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA, 483 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB, 484 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID, 485 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI, 486 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS, 487 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA, 488 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD, 489 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC, 490 #if (_WIN32_WINNT >= 0x0601) 491 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 492 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 493 #endif 494 }; 495 496 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 497 { 498 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) { 499 return GUEST_DISK_BUS_TYPE_UNKNOWN; 500 } 501 return win2qemu[(int)bus]; 502 } 503 504 DEFINE_GUID(GUID_DEVINTERFACE_DISK, 505 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2, 506 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 507 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT, 508 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82, 509 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 510 511 static void get_pci_address_for_device(GuestPCIAddress *pci, 512 HDEVINFO dev_info) 513 { 514 SP_DEVINFO_DATA dev_info_data; 515 DWORD j; 516 DWORD size; 517 bool partial_pci = false; 518 519 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 520 521 for (j = 0; 522 SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data); 523 j++) { 524 DWORD addr, bus, ui_slot, type; 525 int func, slot; 526 size = sizeof(DWORD); 527 528 /* 529 * There is no need to allocate buffer in the next functions. The 530 * size is known and ULONG according to 531 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 532 */ 533 if (!SetupDiGetDeviceRegistryProperty( 534 dev_info, &dev_info_data, SPDRP_BUSNUMBER, 535 &type, (PBYTE)&bus, size, NULL)) { 536 debug_error("failed to get PCI bus"); 537 bus = -1; 538 partial_pci = true; 539 } 540 541 /* 542 * The function retrieves the device's address. This value will be 543 * transformed into device function and number 544 */ 545 if (!SetupDiGetDeviceRegistryProperty( 546 dev_info, &dev_info_data, SPDRP_ADDRESS, 547 &type, (PBYTE)&addr, size, NULL)) { 548 debug_error("failed to get PCI address"); 549 addr = -1; 550 partial_pci = true; 551 } 552 553 /* 554 * This call returns UINumber of DEVICE_CAPABILITIES structure. 555 * This number is typically a user-perceived slot number. 556 */ 557 if (!SetupDiGetDeviceRegistryProperty( 558 dev_info, &dev_info_data, SPDRP_UI_NUMBER, 559 &type, (PBYTE)&ui_slot, size, NULL)) { 560 debug_error("failed to get PCI slot"); 561 ui_slot = -1; 562 partial_pci = true; 563 } 564 565 /* 566 * SetupApi gives us the same information as driver with 567 * IoGetDeviceProperty. According to Microsoft: 568 * 569 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF) 570 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF) 571 * SPDRP_ADDRESS is propertyAddress, so we do the same. 572 * 573 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya 574 */ 575 if (partial_pci) { 576 pci->domain = -1; 577 pci->slot = -1; 578 pci->function = -1; 579 pci->bus = -1; 580 continue; 581 } else { 582 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF; 583 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF; 584 if ((int)ui_slot != slot) { 585 g_debug("mismatch with reported slot values: %d vs %d", 586 (int)ui_slot, slot); 587 } 588 pci->domain = 0; 589 pci->slot = (int)ui_slot; 590 pci->function = func; 591 pci->bus = (int)bus; 592 return; 593 } 594 } 595 } 596 597 static GuestPCIAddress *get_pci_info(int number, Error **errp) 598 { 599 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 600 HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE; 601 602 SP_DEVINFO_DATA dev_info_data; 603 SP_DEVICE_INTERFACE_DATA dev_iface_data; 604 HANDLE dev_file; 605 int i; 606 GuestPCIAddress *pci = NULL; 607 608 pci = g_malloc0(sizeof(*pci)); 609 pci->domain = -1; 610 pci->slot = -1; 611 pci->function = -1; 612 pci->bus = -1; 613 614 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 615 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 616 if (dev_info == INVALID_HANDLE_VALUE) { 617 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 618 goto end; 619 } 620 621 g_debug("enumerating devices"); 622 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 623 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 624 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 625 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL; 626 STORAGE_DEVICE_NUMBER sdn; 627 g_autofree char *parent_dev_id = NULL; 628 SP_DEVINFO_DATA parent_dev_info_data; 629 DWORD size = 0; 630 631 g_debug("getting device path"); 632 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, 633 &GUID_DEVINTERFACE_DISK, 0, 634 &dev_iface_data)) { 635 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 636 pdev_iface_detail_data, 637 size, &size, 638 &dev_info_data)) { 639 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 640 pdev_iface_detail_data = g_malloc(size); 641 pdev_iface_detail_data->cbSize = 642 sizeof(*pdev_iface_detail_data); 643 } else { 644 error_setg_win32(errp, GetLastError(), 645 "failed to get device interfaces"); 646 goto end; 647 } 648 } 649 650 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 651 pdev_iface_detail_data, 652 size, &size, 653 &dev_info_data)) { 654 // pdev_iface_detail_data already is allocated 655 error_setg_win32(errp, GetLastError(), 656 "failed to get device interfaces"); 657 goto end; 658 } 659 660 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 661 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 662 NULL); 663 664 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 665 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 666 CloseHandle(dev_file); 667 error_setg_win32(errp, GetLastError(), 668 "failed to get device slot number"); 669 goto end; 670 } 671 672 CloseHandle(dev_file); 673 if (sdn.DeviceNumber != number) { 674 continue; 675 } 676 } else { 677 error_setg_win32(errp, GetLastError(), 678 "failed to get device interfaces"); 679 goto end; 680 } 681 682 g_debug("found device slot %d. Getting storage controller", number); 683 { 684 CONFIGRET cr; 685 DEVINST dev_inst, parent_dev_inst; 686 ULONG dev_id_size = 0; 687 688 size = 0; 689 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 690 parent_dev_id, size, &size)) { 691 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 692 parent_dev_id = g_malloc(size); 693 } else { 694 error_setg_win32(errp, GetLastError(), 695 "failed to get device instance ID"); 696 goto end; 697 } 698 } 699 700 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 701 parent_dev_id, size, &size)) { 702 // parent_dev_id already is allocated 703 error_setg_win32(errp, GetLastError(), 704 "failed to get device instance ID"); 705 goto end; 706 } 707 708 /* 709 * CM API used here as opposed to 710 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...) 711 * which exports are only available in mingw-w64 6+ 712 */ 713 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0); 714 if (cr != CR_SUCCESS) { 715 g_error("CM_Locate_DevInst failed with code %lx", cr); 716 error_setg_win32(errp, GetLastError(), 717 "failed to get device instance"); 718 goto end; 719 } 720 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0); 721 if (cr != CR_SUCCESS) { 722 g_error("CM_Get_Parent failed with code %lx", cr); 723 error_setg_win32(errp, GetLastError(), 724 "failed to get parent device instance"); 725 goto end; 726 } 727 728 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0); 729 if (cr != CR_SUCCESS) { 730 g_error("CM_Get_Device_ID_Size failed with code %lx", cr); 731 error_setg_win32(errp, GetLastError(), 732 "failed to get parent device ID length"); 733 goto end; 734 } 735 736 ++dev_id_size; 737 if (dev_id_size > size) { 738 g_free(parent_dev_id); 739 parent_dev_id = g_malloc(dev_id_size); 740 } 741 742 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size, 743 0); 744 if (cr != CR_SUCCESS) { 745 g_error("CM_Get_Device_ID failed with code %lx", cr); 746 error_setg_win32(errp, GetLastError(), 747 "failed to get parent device ID"); 748 goto end; 749 } 750 } 751 752 g_debug("querying storage controller %s for PCI information", 753 parent_dev_id); 754 parent_dev_info = 755 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id, 756 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 757 758 if (parent_dev_info == INVALID_HANDLE_VALUE) { 759 error_setg_win32(errp, GetLastError(), 760 "failed to get parent device"); 761 goto end; 762 } 763 764 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 765 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) { 766 error_setg_win32(errp, GetLastError(), 767 "failed to get parent device data"); 768 goto end; 769 } 770 771 get_pci_address_for_device(pci, parent_dev_info); 772 773 break; 774 } 775 776 end: 777 if (parent_dev_info != INVALID_HANDLE_VALUE) { 778 SetupDiDestroyDeviceInfoList(parent_dev_info); 779 } 780 if (dev_info != INVALID_HANDLE_VALUE) { 781 SetupDiDestroyDeviceInfoList(dev_info); 782 } 783 return pci; 784 } 785 786 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk, 787 Error **errp) 788 { 789 STORAGE_PROPERTY_QUERY query; 790 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 791 DWORD received; 792 ULONG size = sizeof(buf); 793 794 dev_desc = &buf; 795 query.PropertyId = StorageDeviceProperty; 796 query.QueryType = PropertyStandardQuery; 797 798 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 799 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 800 size, &received, NULL)) { 801 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 802 return; 803 } 804 disk->bus_type = find_bus_type(dev_desc->BusType); 805 g_debug("bus type %d", disk->bus_type); 806 807 /* Query once more. Now with long enough buffer. */ 808 size = dev_desc->Size; 809 dev_desc = g_malloc0(size); 810 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 811 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 812 size, &received, NULL)) { 813 error_setg_win32(errp, GetLastError(), "failed to get serial number"); 814 g_debug("failed to get serial number"); 815 goto out_free; 816 } 817 if (dev_desc->SerialNumberOffset > 0) { 818 const char *serial; 819 size_t len; 820 821 if (dev_desc->SerialNumberOffset >= received) { 822 error_setg(errp, "failed to get serial number: offset outside the buffer"); 823 g_debug("serial number offset outside the buffer"); 824 goto out_free; 825 } 826 serial = (char *)dev_desc + dev_desc->SerialNumberOffset; 827 len = received - dev_desc->SerialNumberOffset; 828 g_debug("serial number \"%s\"", serial); 829 if (*serial != 0) { 830 disk->serial = g_strndup(serial, len); 831 disk->has_serial = true; 832 } 833 } 834 out_free: 835 g_free(dev_desc); 836 837 return; 838 } 839 840 static void get_single_disk_info(int disk_number, 841 GuestDiskAddress *disk, Error **errp) 842 { 843 SCSI_ADDRESS addr, *scsi_ad; 844 DWORD len; 845 HANDLE disk_h; 846 Error *local_err = NULL; 847 848 scsi_ad = &addr; 849 850 g_debug("getting disk info for: %s", disk->dev); 851 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 852 0, NULL); 853 if (disk_h == INVALID_HANDLE_VALUE) { 854 error_setg_win32(errp, GetLastError(), "failed to open disk"); 855 return; 856 } 857 858 get_disk_properties(disk_h, disk, &local_err); 859 if (local_err) { 860 error_propagate(errp, local_err); 861 goto err_close; 862 } 863 864 g_debug("bus type %d", disk->bus_type); 865 /* always set pci_controller as required by schema. get_pci_info() should 866 * report -1 values for non-PCI buses rather than fail. fail the command 867 * if that doesn't hold since that suggests some other unexpected 868 * breakage 869 */ 870 disk->pci_controller = get_pci_info(disk_number, &local_err); 871 if (local_err) { 872 error_propagate(errp, local_err); 873 goto err_close; 874 } 875 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI 876 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE 877 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID 878 /* This bus type is not supported before Windows Server 2003 SP1 */ 879 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS 880 ) { 881 /* We are able to use the same ioctls for different bus types 882 * according to Microsoft docs 883 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 884 g_debug("getting SCSI info"); 885 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 886 sizeof(SCSI_ADDRESS), &len, NULL)) { 887 disk->unit = addr.Lun; 888 disk->target = addr.TargetId; 889 disk->bus = addr.PathId; 890 } 891 /* We do not set error in this case, because we still have enough 892 * information about volume. */ 893 } 894 895 err_close: 896 CloseHandle(disk_h); 897 return; 898 } 899 900 /* VSS provider works with volumes, thus there is no difference if 901 * the volume consist of spanned disks. Info about the first disk in the 902 * volume is returned for the spanned disk group (LVM) */ 903 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 904 { 905 Error *local_err = NULL; 906 GuestDiskAddressList *list = NULL; 907 GuestDiskAddress *disk = NULL; 908 int i; 909 HANDLE vol_h; 910 DWORD size; 911 PVOLUME_DISK_EXTENTS extents = NULL; 912 913 /* strip final backslash */ 914 char *name = g_strdup(guid); 915 if (g_str_has_suffix(name, "\\")) { 916 name[strlen(name) - 1] = 0; 917 } 918 919 g_debug("opening %s", name); 920 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 921 0, NULL); 922 if (vol_h == INVALID_HANDLE_VALUE) { 923 error_setg_win32(errp, GetLastError(), "failed to open volume"); 924 goto out; 925 } 926 927 /* Get list of extents */ 928 g_debug("getting disk extents"); 929 size = sizeof(VOLUME_DISK_EXTENTS); 930 extents = g_malloc0(size); 931 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 932 0, extents, size, &size, NULL)) { 933 DWORD last_err = GetLastError(); 934 if (last_err == ERROR_MORE_DATA) { 935 /* Try once more with big enough buffer */ 936 g_free(extents); 937 extents = g_malloc0(size); 938 if (!DeviceIoControl( 939 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 940 0, extents, size, NULL, NULL)) { 941 error_setg_win32(errp, GetLastError(), 942 "failed to get disk extents"); 943 goto out; 944 } 945 } else if (last_err == ERROR_INVALID_FUNCTION) { 946 /* Possibly CD-ROM or a shared drive. Try to pass the volume */ 947 g_debug("volume not on disk"); 948 disk = g_new0(GuestDiskAddress, 1); 949 disk->has_dev = true; 950 disk->dev = g_strdup(name); 951 get_single_disk_info(0xffffffff, disk, &local_err); 952 if (local_err) { 953 g_debug("failed to get disk info, ignoring error: %s", 954 error_get_pretty(local_err)); 955 error_free(local_err); 956 goto out; 957 } 958 QAPI_LIST_PREPEND(list, disk); 959 disk = NULL; 960 goto out; 961 } else { 962 error_setg_win32(errp, GetLastError(), 963 "failed to get disk extents"); 964 goto out; 965 } 966 } 967 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents); 968 969 /* Go through each extent */ 970 for (i = 0; i < extents->NumberOfDiskExtents; i++) { 971 disk = g_new0(GuestDiskAddress, 1); 972 973 /* Disk numbers directly correspond to numbers used in UNCs 974 * 975 * See documentation for DISK_EXTENT: 976 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent 977 * 978 * See also Naming Files, Paths and Namespaces: 979 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces 980 */ 981 disk->has_dev = true; 982 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 983 extents->Extents[i].DiskNumber); 984 985 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err); 986 if (local_err) { 987 error_propagate(errp, local_err); 988 goto out; 989 } 990 QAPI_LIST_PREPEND(list, disk); 991 disk = NULL; 992 } 993 994 995 out: 996 if (vol_h != INVALID_HANDLE_VALUE) { 997 CloseHandle(vol_h); 998 } 999 qapi_free_GuestDiskAddress(disk); 1000 g_free(extents); 1001 g_free(name); 1002 1003 return list; 1004 } 1005 1006 GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1007 { 1008 GuestDiskInfoList *ret = NULL; 1009 HDEVINFO dev_info; 1010 SP_DEVICE_INTERFACE_DATA dev_iface_data; 1011 int i; 1012 1013 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 1014 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 1015 if (dev_info == INVALID_HANDLE_VALUE) { 1016 error_setg_win32(errp, GetLastError(), "failed to get device tree"); 1017 return NULL; 1018 } 1019 1020 g_debug("enumerating devices"); 1021 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 1022 for (i = 0; 1023 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK, 1024 i, &dev_iface_data); 1025 i++) { 1026 GuestDiskAddress *address = NULL; 1027 GuestDiskInfo *disk = NULL; 1028 Error *local_err = NULL; 1029 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA 1030 pdev_iface_detail_data = NULL; 1031 STORAGE_DEVICE_NUMBER sdn; 1032 HANDLE dev_file; 1033 DWORD size = 0; 1034 BOOL result; 1035 int attempt; 1036 1037 g_debug(" getting device path"); 1038 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) { 1039 result = SetupDiGetDeviceInterfaceDetail(dev_info, 1040 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL); 1041 if (result) { 1042 break; 1043 } 1044 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 1045 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data, 1046 size); 1047 pdev_iface_detail_data->cbSize = 1048 sizeof(*pdev_iface_detail_data); 1049 } else { 1050 g_debug("failed to get device interface details"); 1051 break; 1052 } 1053 } 1054 if (!result) { 1055 g_debug("skipping device"); 1056 continue; 1057 } 1058 1059 g_debug(" device: %s", pdev_iface_detail_data->DevicePath); 1060 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 1061 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); 1062 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 1063 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 1064 CloseHandle(dev_file); 1065 debug_error("failed to get storage device number"); 1066 continue; 1067 } 1068 CloseHandle(dev_file); 1069 1070 disk = g_new0(GuestDiskInfo, 1); 1071 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 1072 sdn.DeviceNumber); 1073 1074 g_debug(" number: %lu", sdn.DeviceNumber); 1075 address = g_new0(GuestDiskAddress, 1); 1076 address->has_dev = true; 1077 address->dev = g_strdup(disk->name); 1078 get_single_disk_info(sdn.DeviceNumber, address, &local_err); 1079 if (local_err) { 1080 g_debug("failed to get disk info: %s", 1081 error_get_pretty(local_err)); 1082 error_free(local_err); 1083 qapi_free_GuestDiskAddress(address); 1084 address = NULL; 1085 } else { 1086 disk->address = address; 1087 disk->has_address = true; 1088 } 1089 1090 QAPI_LIST_PREPEND(ret, disk); 1091 } 1092 1093 SetupDiDestroyDeviceInfoList(dev_info); 1094 return ret; 1095 } 1096 1097 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 1098 { 1099 DWORD info_size; 1100 char mnt, *mnt_point; 1101 wchar_t wfs_name[32]; 1102 char fs_name[32]; 1103 wchar_t vol_info[MAX_PATH + 1]; 1104 size_t len; 1105 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes; 1106 GuestFilesystemInfo *fs = NULL; 1107 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE; 1108 1109 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 1110 if (GetLastError() != ERROR_MORE_DATA) { 1111 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1112 return NULL; 1113 } 1114 1115 mnt_point = g_malloc(info_size + 1); 1116 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 1117 &info_size)) { 1118 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1119 goto free; 1120 } 1121 1122 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING, 1123 FILE_ATTRIBUTE_NORMAL | 1124 FILE_FLAG_BACKUP_SEMANTICS, NULL); 1125 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) { 1126 error_setg_win32(errp, GetLastError(), "failed to get handle for volume"); 1127 goto free; 1128 } 1129 1130 len = strlen(mnt_point); 1131 mnt_point[len] = '\\'; 1132 mnt_point[len + 1] = 0; 1133 1134 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info, 1135 sizeof(vol_info), NULL, NULL, NULL, 1136 (LPWSTR) & wfs_name, sizeof(wfs_name))) { 1137 if (GetLastError() != ERROR_NOT_READY) { 1138 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 1139 } 1140 goto free; 1141 } 1142 1143 fs = g_malloc(sizeof(*fs)); 1144 fs->name = g_strdup(guid); 1145 fs->has_total_bytes = false; 1146 fs->has_used_bytes = false; 1147 if (len == 0) { 1148 fs->mountpoint = g_strdup("System Reserved"); 1149 } else { 1150 fs->mountpoint = g_strndup(mnt_point, len); 1151 if (GetDiskFreeSpaceEx(fs->mountpoint, 1152 (PULARGE_INTEGER) & i64FreeBytesToCaller, 1153 (PULARGE_INTEGER) & i64TotalBytes, 1154 (PULARGE_INTEGER) & i64FreeBytes)) { 1155 fs->used_bytes = i64TotalBytes - i64FreeBytes; 1156 fs->total_bytes = i64TotalBytes; 1157 fs->has_total_bytes = true; 1158 fs->has_used_bytes = true; 1159 } 1160 } 1161 wcstombs(fs_name, wfs_name, sizeof(wfs_name)); 1162 fs->type = g_strdup(fs_name); 1163 fs->disk = build_guest_disk_info(guid, errp); 1164 free: 1165 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) { 1166 CloseHandle(hLocalDiskHandle); 1167 } 1168 g_free(mnt_point); 1169 return fs; 1170 } 1171 1172 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 1173 { 1174 HANDLE vol_h; 1175 GuestFilesystemInfoList *ret = NULL; 1176 char guid[256]; 1177 1178 vol_h = FindFirstVolume(guid, sizeof(guid)); 1179 if (vol_h == INVALID_HANDLE_VALUE) { 1180 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1181 return NULL; 1182 } 1183 1184 do { 1185 Error *local_err = NULL; 1186 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err); 1187 if (local_err) { 1188 g_debug("failed to get filesystem info, ignoring error: %s", 1189 error_get_pretty(local_err)); 1190 error_free(local_err); 1191 continue; 1192 } 1193 QAPI_LIST_PREPEND(ret, info); 1194 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 1195 1196 if (GetLastError() != ERROR_NO_MORE_FILES) { 1197 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 1198 } 1199 1200 FindVolumeClose(vol_h); 1201 return ret; 1202 } 1203 1204 /* 1205 * Return status of freeze/thaw 1206 */ 1207 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1208 { 1209 if (!vss_initialized()) { 1210 error_setg(errp, QERR_UNSUPPORTED); 1211 return 0; 1212 } 1213 1214 if (ga_is_frozen(ga_state)) { 1215 return GUEST_FSFREEZE_STATUS_FROZEN; 1216 } 1217 1218 return GUEST_FSFREEZE_STATUS_THAWED; 1219 } 1220 1221 /* 1222 * Freeze local file systems using Volume Shadow-copy Service. 1223 * The frozen state is limited for up to 10 seconds by VSS. 1224 */ 1225 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1226 { 1227 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1228 } 1229 1230 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1231 strList *mountpoints, 1232 Error **errp) 1233 { 1234 int i; 1235 Error *local_err = NULL; 1236 1237 if (!vss_initialized()) { 1238 error_setg(errp, QERR_UNSUPPORTED); 1239 return 0; 1240 } 1241 1242 slog("guest-fsfreeze called"); 1243 1244 /* cannot risk guest agent blocking itself on a write in this state */ 1245 ga_set_frozen(ga_state); 1246 1247 qga_vss_fsfreeze(&i, true, mountpoints, &local_err); 1248 if (local_err) { 1249 error_propagate(errp, local_err); 1250 goto error; 1251 } 1252 1253 return i; 1254 1255 error: 1256 local_err = NULL; 1257 qmp_guest_fsfreeze_thaw(&local_err); 1258 if (local_err) { 1259 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 1260 error_free(local_err); 1261 } 1262 return 0; 1263 } 1264 1265 /* 1266 * Thaw local file systems using Volume Shadow-copy Service. 1267 */ 1268 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1269 { 1270 int i; 1271 1272 if (!vss_initialized()) { 1273 error_setg(errp, QERR_UNSUPPORTED); 1274 return 0; 1275 } 1276 1277 qga_vss_fsfreeze(&i, false, NULL, errp); 1278 1279 ga_unset_frozen(ga_state); 1280 return i; 1281 } 1282 1283 static void guest_fsfreeze_cleanup(void) 1284 { 1285 Error *err = NULL; 1286 1287 if (!vss_initialized()) { 1288 return; 1289 } 1290 1291 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 1292 qmp_guest_fsfreeze_thaw(&err); 1293 if (err) { 1294 slog("failed to clean up frozen filesystems: %s", 1295 error_get_pretty(err)); 1296 error_free(err); 1297 } 1298 } 1299 1300 vss_deinit(true); 1301 } 1302 1303 /* 1304 * Walk list of mounted file systems in the guest, and discard unused 1305 * areas. 1306 */ 1307 GuestFilesystemTrimResponse * 1308 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1309 { 1310 GuestFilesystemTrimResponse *resp; 1311 HANDLE handle; 1312 WCHAR guid[MAX_PATH] = L""; 1313 OSVERSIONINFO osvi; 1314 BOOL win8_or_later; 1315 1316 ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); 1317 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1318 GetVersionEx(&osvi); 1319 win8_or_later = (osvi.dwMajorVersion > 6 || 1320 ((osvi.dwMajorVersion == 6) && 1321 (osvi.dwMinorVersion >= 2))); 1322 if (!win8_or_later) { 1323 error_setg(errp, "fstrim is only supported for Win8+"); 1324 return NULL; 1325 } 1326 1327 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 1328 if (handle == INVALID_HANDLE_VALUE) { 1329 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1330 return NULL; 1331 } 1332 1333 resp = g_new0(GuestFilesystemTrimResponse, 1); 1334 1335 do { 1336 GuestFilesystemTrimResult *res; 1337 PWCHAR uc_path; 1338 DWORD char_count = 0; 1339 char *path, *out; 1340 GError *gerr = NULL; 1341 gchar *argv[4]; 1342 1343 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 1344 1345 if (GetLastError() != ERROR_MORE_DATA) { 1346 continue; 1347 } 1348 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 1349 continue; 1350 } 1351 1352 uc_path = g_new(WCHAR, char_count); 1353 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 1354 &char_count) || !*uc_path) { 1355 /* strange, but this condition could be faced even with size == 2 */ 1356 g_free(uc_path); 1357 continue; 1358 } 1359 1360 res = g_new0(GuestFilesystemTrimResult, 1); 1361 1362 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 1363 1364 g_free(uc_path); 1365 1366 if (!path) { 1367 res->has_error = true; 1368 res->error = g_strdup(gerr->message); 1369 g_error_free(gerr); 1370 break; 1371 } 1372 1373 res->path = path; 1374 1375 QAPI_LIST_PREPEND(resp->paths, res); 1376 1377 memset(argv, 0, sizeof(argv)); 1378 argv[0] = (gchar *)"defrag.exe"; 1379 argv[1] = (gchar *)"/L"; 1380 argv[2] = path; 1381 1382 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 1383 &out /* stdout */, NULL /* stdin */, 1384 NULL, &gerr)) { 1385 res->has_error = true; 1386 res->error = g_strdup(gerr->message); 1387 g_error_free(gerr); 1388 } else { 1389 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 1390 Error is reported in the output with something like 1391 (x89000020) etc code in the stdout */ 1392 1393 int i; 1394 gchar **lines = g_strsplit(out, "\r\n", 0); 1395 g_free(out); 1396 1397 for (i = 0; lines[i] != NULL; i++) { 1398 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 1399 continue; 1400 } 1401 res->has_error = true; 1402 res->error = g_strdup(lines[i]); 1403 break; 1404 } 1405 g_strfreev(lines); 1406 } 1407 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 1408 1409 FindVolumeClose(handle); 1410 return resp; 1411 } 1412 1413 typedef enum { 1414 GUEST_SUSPEND_MODE_DISK, 1415 GUEST_SUSPEND_MODE_RAM 1416 } GuestSuspendMode; 1417 1418 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 1419 { 1420 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 1421 1422 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 1423 if (!GetPwrCapabilities(&sys_pwr_caps)) { 1424 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1425 "failed to determine guest suspend capabilities"); 1426 return; 1427 } 1428 1429 switch (mode) { 1430 case GUEST_SUSPEND_MODE_DISK: 1431 if (!sys_pwr_caps.SystemS4) { 1432 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1433 "suspend-to-disk not supported by OS"); 1434 } 1435 break; 1436 case GUEST_SUSPEND_MODE_RAM: 1437 if (!sys_pwr_caps.SystemS3) { 1438 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1439 "suspend-to-ram not supported by OS"); 1440 } 1441 break; 1442 default: 1443 abort(); 1444 } 1445 } 1446 1447 static DWORD WINAPI do_suspend(LPVOID opaque) 1448 { 1449 GuestSuspendMode *mode = opaque; 1450 DWORD ret = 0; 1451 1452 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 1453 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 1454 slog("failed to suspend guest: %s", emsg); 1455 ret = -1; 1456 } 1457 g_free(mode); 1458 return ret; 1459 } 1460 1461 void qmp_guest_suspend_disk(Error **errp) 1462 { 1463 Error *local_err = NULL; 1464 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1465 1466 *mode = GUEST_SUSPEND_MODE_DISK; 1467 check_suspend_mode(*mode, &local_err); 1468 if (local_err) { 1469 goto out; 1470 } 1471 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1472 if (local_err) { 1473 goto out; 1474 } 1475 execute_async(do_suspend, mode, &local_err); 1476 1477 out: 1478 if (local_err) { 1479 error_propagate(errp, local_err); 1480 g_free(mode); 1481 } 1482 } 1483 1484 void qmp_guest_suspend_ram(Error **errp) 1485 { 1486 Error *local_err = NULL; 1487 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1488 1489 *mode = GUEST_SUSPEND_MODE_RAM; 1490 check_suspend_mode(*mode, &local_err); 1491 if (local_err) { 1492 goto out; 1493 } 1494 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1495 if (local_err) { 1496 goto out; 1497 } 1498 execute_async(do_suspend, mode, &local_err); 1499 1500 out: 1501 if (local_err) { 1502 error_propagate(errp, local_err); 1503 g_free(mode); 1504 } 1505 } 1506 1507 void qmp_guest_suspend_hybrid(Error **errp) 1508 { 1509 error_setg(errp, QERR_UNSUPPORTED); 1510 } 1511 1512 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1513 { 1514 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1515 ULONG adptr_addrs_len = 0; 1516 DWORD ret; 1517 1518 /* Call the first time to get the adptr_addrs_len. */ 1519 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1520 NULL, adptr_addrs, &adptr_addrs_len); 1521 1522 adptr_addrs = g_malloc(adptr_addrs_len); 1523 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1524 NULL, adptr_addrs, &adptr_addrs_len); 1525 if (ret != ERROR_SUCCESS) { 1526 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1527 g_free(adptr_addrs); 1528 adptr_addrs = NULL; 1529 } 1530 return adptr_addrs; 1531 } 1532 1533 static char *guest_wctomb_dup(WCHAR *wstr) 1534 { 1535 char *str; 1536 size_t str_size; 1537 1538 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); 1539 /* add 1 to str_size for NULL terminator */ 1540 str = g_malloc(str_size + 1); 1541 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL); 1542 return str; 1543 } 1544 1545 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1546 Error **errp) 1547 { 1548 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1549 DWORD len; 1550 int ret; 1551 1552 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1553 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1554 len = sizeof(addr_str); 1555 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1556 ip_addr->Address.iSockaddrLength, 1557 NULL, 1558 addr_str, 1559 &len); 1560 if (ret != 0) { 1561 error_setg_win32(errp, WSAGetLastError(), 1562 "failed address presentation form conversion"); 1563 return NULL; 1564 } 1565 return g_strdup(addr_str); 1566 } 1567 return NULL; 1568 } 1569 1570 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1571 { 1572 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1573 * field to obtain the prefix. 1574 */ 1575 return ip_addr->OnLinkPrefixLength; 1576 } 1577 1578 #define INTERFACE_PATH_BUF_SZ 512 1579 1580 static DWORD get_interface_index(const char *guid) 1581 { 1582 ULONG index; 1583 DWORD status; 1584 wchar_t wbuf[INTERFACE_PATH_BUF_SZ]; 1585 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid); 1586 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0; 1587 status = GetAdapterIndex (wbuf, &index); 1588 if (status != NO_ERROR) { 1589 return (DWORD)~0; 1590 } else { 1591 return index; 1592 } 1593 } 1594 1595 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row); 1596 1597 static int guest_get_network_stats(const char *name, 1598 GuestNetworkInterfaceStat *stats) 1599 { 1600 OSVERSIONINFO os_ver; 1601 1602 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1603 GetVersionEx(&os_ver); 1604 if (os_ver.dwMajorVersion >= 6) { 1605 MIB_IF_ROW2 a_mid_ifrow; 1606 GetIfEntry2Func getifentry2_ex; 1607 DWORD if_index = 0; 1608 HMODULE module = GetModuleHandle("iphlpapi"); 1609 PVOID func = GetProcAddress(module, "GetIfEntry2"); 1610 1611 if (func == NULL) { 1612 return -1; 1613 } 1614 1615 getifentry2_ex = (GetIfEntry2Func)func; 1616 if_index = get_interface_index(name); 1617 if (if_index == (DWORD)~0) { 1618 return -1; 1619 } 1620 1621 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow)); 1622 a_mid_ifrow.InterfaceIndex = if_index; 1623 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) { 1624 stats->rx_bytes = a_mid_ifrow.InOctets; 1625 stats->rx_packets = a_mid_ifrow.InUcastPkts; 1626 stats->rx_errs = a_mid_ifrow.InErrors; 1627 stats->rx_dropped = a_mid_ifrow.InDiscards; 1628 stats->tx_bytes = a_mid_ifrow.OutOctets; 1629 stats->tx_packets = a_mid_ifrow.OutUcastPkts; 1630 stats->tx_errs = a_mid_ifrow.OutErrors; 1631 stats->tx_dropped = a_mid_ifrow.OutDiscards; 1632 return 0; 1633 } 1634 } 1635 return -1; 1636 } 1637 1638 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1639 { 1640 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1641 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1642 GuestNetworkInterfaceList *head = NULL, **tail = &head; 1643 GuestIpAddressList *head_addr, **tail_addr; 1644 GuestNetworkInterface *info; 1645 GuestNetworkInterfaceStat *interface_stat = NULL; 1646 GuestIpAddress *address_item = NULL; 1647 unsigned char *mac_addr; 1648 char *addr_str; 1649 WORD wsa_version; 1650 WSADATA wsa_data; 1651 int ret; 1652 1653 adptr_addrs = guest_get_adapters_addresses(errp); 1654 if (adptr_addrs == NULL) { 1655 return NULL; 1656 } 1657 1658 /* Make WSA APIs available. */ 1659 wsa_version = MAKEWORD(2, 2); 1660 ret = WSAStartup(wsa_version, &wsa_data); 1661 if (ret != 0) { 1662 error_setg_win32(errp, ret, "failed socket startup"); 1663 goto out; 1664 } 1665 1666 for (addr = adptr_addrs; addr; addr = addr->Next) { 1667 info = g_malloc0(sizeof(*info)); 1668 1669 QAPI_LIST_APPEND(tail, info); 1670 1671 info->name = guest_wctomb_dup(addr->FriendlyName); 1672 1673 if (addr->PhysicalAddressLength != 0) { 1674 mac_addr = addr->PhysicalAddress; 1675 1676 info->hardware_address = 1677 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1678 (int) mac_addr[0], (int) mac_addr[1], 1679 (int) mac_addr[2], (int) mac_addr[3], 1680 (int) mac_addr[4], (int) mac_addr[5]); 1681 1682 info->has_hardware_address = true; 1683 } 1684 1685 head_addr = NULL; 1686 tail_addr = &head_addr; 1687 for (ip_addr = addr->FirstUnicastAddress; 1688 ip_addr; 1689 ip_addr = ip_addr->Next) { 1690 addr_str = guest_addr_to_str(ip_addr, errp); 1691 if (addr_str == NULL) { 1692 continue; 1693 } 1694 1695 address_item = g_malloc0(sizeof(*address_item)); 1696 1697 QAPI_LIST_APPEND(tail_addr, address_item); 1698 1699 address_item->ip_address = addr_str; 1700 address_item->prefix = guest_ip_prefix(ip_addr); 1701 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1702 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 1703 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1704 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 1705 } 1706 } 1707 if (head_addr) { 1708 info->has_ip_addresses = true; 1709 info->ip_addresses = head_addr; 1710 } 1711 if (!info->has_statistics) { 1712 interface_stat = g_malloc0(sizeof(*interface_stat)); 1713 if (guest_get_network_stats(addr->AdapterName, 1714 interface_stat) == -1) { 1715 info->has_statistics = false; 1716 g_free(interface_stat); 1717 } else { 1718 info->statistics = interface_stat; 1719 info->has_statistics = true; 1720 } 1721 } 1722 } 1723 WSACleanup(); 1724 out: 1725 g_free(adptr_addrs); 1726 return head; 1727 } 1728 1729 static int64_t filetime_to_ns(const FILETIME *tf) 1730 { 1731 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime) 1732 - W32_FT_OFFSET) * 100; 1733 } 1734 1735 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1736 { 1737 Error *local_err = NULL; 1738 SYSTEMTIME ts; 1739 FILETIME tf; 1740 LONGLONG time; 1741 1742 if (!has_time) { 1743 /* Unfortunately, Windows libraries don't provide an easy way to access 1744 * RTC yet: 1745 * 1746 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1747 * 1748 * Instead, a workaround is to use the Windows win32tm command to 1749 * resync the time using the Windows Time service. 1750 */ 1751 LPVOID msg_buffer; 1752 DWORD ret_flags; 1753 1754 HRESULT hr = system("w32tm /resync /nowait"); 1755 1756 if (GetLastError() != 0) { 1757 strerror_s((LPTSTR) & msg_buffer, 0, errno); 1758 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer); 1759 } else if (hr != 0) { 1760 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) { 1761 error_setg(errp, "Windows Time service not running on the " 1762 "guest"); 1763 } else { 1764 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 1765 FORMAT_MESSAGE_FROM_SYSTEM | 1766 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, 1767 (DWORD)hr, MAKELANGID(LANG_NEUTRAL, 1768 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0, 1769 NULL)) { 1770 error_setg(errp, "w32tm failed with error (0x%lx), couldn'" 1771 "t retrieve error message", hr); 1772 } else { 1773 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr, 1774 (LPCTSTR)msg_buffer); 1775 LocalFree(msg_buffer); 1776 } 1777 } 1778 } else if (!InternetGetConnectedState(&ret_flags, 0)) { 1779 error_setg(errp, "No internet connection on guest, sync not " 1780 "accurate"); 1781 } 1782 return; 1783 } 1784 1785 /* Validate time passed by user. */ 1786 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1787 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1788 return; 1789 } 1790 1791 time = time_ns / 100 + W32_FT_OFFSET; 1792 1793 tf.dwLowDateTime = (DWORD) time; 1794 tf.dwHighDateTime = (DWORD) (time >> 32); 1795 1796 if (!FileTimeToSystemTime(&tf, &ts)) { 1797 error_setg(errp, "Failed to convert system time %d", 1798 (int)GetLastError()); 1799 return; 1800 } 1801 1802 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1803 if (local_err) { 1804 error_propagate(errp, local_err); 1805 return; 1806 } 1807 1808 if (!SetSystemTime(&ts)) { 1809 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1810 return; 1811 } 1812 } 1813 1814 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1815 { 1816 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1817 DWORD length; 1818 GuestLogicalProcessorList *head, **tail; 1819 Error *local_err = NULL; 1820 int64_t current; 1821 1822 ptr = pslpi = NULL; 1823 length = 0; 1824 current = 0; 1825 head = NULL; 1826 tail = &head; 1827 1828 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1829 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1830 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1831 ptr = pslpi = g_malloc0(length); 1832 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1833 error_setg(&local_err, "Failed to get processor information: %d", 1834 (int)GetLastError()); 1835 } 1836 } else { 1837 error_setg(&local_err, 1838 "Failed to get processor information buffer length: %d", 1839 (int)GetLastError()); 1840 } 1841 1842 while ((local_err == NULL) && (length > 0)) { 1843 if (pslpi->Relationship == RelationProcessorCore) { 1844 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1845 1846 while (cpu_bits > 0) { 1847 if (!!(cpu_bits & 1)) { 1848 GuestLogicalProcessor *vcpu; 1849 1850 vcpu = g_malloc0(sizeof *vcpu); 1851 vcpu->logical_id = current++; 1852 vcpu->online = true; 1853 vcpu->has_can_offline = true; 1854 1855 QAPI_LIST_APPEND(tail, vcpu); 1856 } 1857 cpu_bits >>= 1; 1858 } 1859 } 1860 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1861 pslpi++; /* next entry */ 1862 } 1863 1864 g_free(ptr); 1865 1866 if (local_err == NULL) { 1867 if (head != NULL) { 1868 return head; 1869 } 1870 /* there's no guest with zero VCPUs */ 1871 error_setg(&local_err, "Guest reported zero VCPUs"); 1872 } 1873 1874 qapi_free_GuestLogicalProcessorList(head); 1875 error_propagate(errp, local_err); 1876 return NULL; 1877 } 1878 1879 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1880 { 1881 error_setg(errp, QERR_UNSUPPORTED); 1882 return -1; 1883 } 1884 1885 static gchar * 1886 get_net_error_message(gint error) 1887 { 1888 HMODULE module = NULL; 1889 gchar *retval = NULL; 1890 wchar_t *msg = NULL; 1891 int flags; 1892 size_t nchars; 1893 1894 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1895 FORMAT_MESSAGE_IGNORE_INSERTS | 1896 FORMAT_MESSAGE_FROM_SYSTEM; 1897 1898 if (error >= NERR_BASE && error <= MAX_NERR) { 1899 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1900 1901 if (module != NULL) { 1902 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1903 } 1904 } 1905 1906 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1907 1908 if (msg != NULL) { 1909 nchars = wcslen(msg); 1910 1911 if (nchars >= 2 && 1912 msg[nchars - 1] == L'\n' && 1913 msg[nchars - 2] == L'\r') { 1914 msg[nchars - 2] = L'\0'; 1915 } 1916 1917 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1918 1919 LocalFree(msg); 1920 } 1921 1922 if (module != NULL) { 1923 FreeLibrary(module); 1924 } 1925 1926 return retval; 1927 } 1928 1929 void qmp_guest_set_user_password(const char *username, 1930 const char *password, 1931 bool crypted, 1932 Error **errp) 1933 { 1934 NET_API_STATUS nas; 1935 char *rawpasswddata = NULL; 1936 size_t rawpasswdlen; 1937 wchar_t *user = NULL, *wpass = NULL; 1938 USER_INFO_1003 pi1003 = { 0, }; 1939 GError *gerr = NULL; 1940 1941 if (crypted) { 1942 error_setg(errp, QERR_UNSUPPORTED); 1943 return; 1944 } 1945 1946 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1947 if (!rawpasswddata) { 1948 return; 1949 } 1950 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1951 rawpasswddata[rawpasswdlen] = '\0'; 1952 1953 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1954 if (!user) { 1955 goto done; 1956 } 1957 1958 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1959 if (!wpass) { 1960 goto done; 1961 } 1962 1963 pi1003.usri1003_password = wpass; 1964 nas = NetUserSetInfo(NULL, user, 1965 1003, (LPBYTE)&pi1003, 1966 NULL); 1967 1968 if (nas != NERR_Success) { 1969 gchar *msg = get_net_error_message(nas); 1970 error_setg(errp, "failed to set password: %s", msg); 1971 g_free(msg); 1972 } 1973 1974 done: 1975 if (gerr) { 1976 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1977 g_error_free(gerr); 1978 } 1979 g_free(user); 1980 g_free(wpass); 1981 g_free(rawpasswddata); 1982 } 1983 1984 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1985 { 1986 error_setg(errp, QERR_UNSUPPORTED); 1987 return NULL; 1988 } 1989 1990 GuestMemoryBlockResponseList * 1991 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1992 { 1993 error_setg(errp, QERR_UNSUPPORTED); 1994 return NULL; 1995 } 1996 1997 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 1998 { 1999 error_setg(errp, QERR_UNSUPPORTED); 2000 return NULL; 2001 } 2002 2003 /* add unsupported commands to the blacklist */ 2004 GList *ga_command_blacklist_init(GList *blacklist) 2005 { 2006 const char *list_unsupported[] = { 2007 "guest-suspend-hybrid", 2008 "guest-set-vcpus", 2009 "guest-get-memory-blocks", "guest-set-memory-blocks", 2010 "guest-get-memory-block-size", "guest-get-memory-block-info", 2011 NULL}; 2012 char **p = (char **)list_unsupported; 2013 2014 while (*p) { 2015 blacklist = g_list_append(blacklist, g_strdup(*p++)); 2016 } 2017 2018 if (!vss_init(true)) { 2019 g_debug("vss_init failed, vss commands are going to be disabled"); 2020 const char *list[] = { 2021 "guest-get-fsinfo", "guest-fsfreeze-status", 2022 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 2023 p = (char **)list; 2024 2025 while (*p) { 2026 blacklist = g_list_append(blacklist, g_strdup(*p++)); 2027 } 2028 } 2029 2030 return blacklist; 2031 } 2032 2033 /* register init/cleanup routines for stateful command groups */ 2034 void ga_command_state_init(GAState *s, GACommandState *cs) 2035 { 2036 if (!vss_initialized()) { 2037 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 2038 } 2039 } 2040 2041 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */ 2042 typedef struct _GA_WTSINFOA { 2043 WTS_CONNECTSTATE_CLASS State; 2044 DWORD SessionId; 2045 DWORD IncomingBytes; 2046 DWORD OutgoingBytes; 2047 DWORD IncomingFrames; 2048 DWORD OutgoingFrames; 2049 DWORD IncomingCompressedBytes; 2050 DWORD OutgoingCompressedBy; 2051 CHAR WinStationName[WINSTATIONNAME_LENGTH]; 2052 CHAR Domain[DOMAIN_LENGTH]; 2053 CHAR UserName[USERNAME_LENGTH + 1]; 2054 LARGE_INTEGER ConnectTime; 2055 LARGE_INTEGER DisconnectTime; 2056 LARGE_INTEGER LastInputTime; 2057 LARGE_INTEGER LogonTime; 2058 LARGE_INTEGER CurrentTime; 2059 2060 } GA_WTSINFOA; 2061 2062 GuestUserList *qmp_guest_get_users(Error **errp) 2063 { 2064 #define QGA_NANOSECONDS 10000000 2065 2066 GHashTable *cache = NULL; 2067 GuestUserList *head = NULL, **tail = &head; 2068 2069 DWORD buffer_size = 0, count = 0, i = 0; 2070 GA_WTSINFOA *info = NULL; 2071 WTS_SESSION_INFOA *entries = NULL; 2072 GuestUser *user = NULL; 2073 gpointer value = NULL; 2074 INT64 login = 0; 2075 double login_time = 0; 2076 2077 cache = g_hash_table_new(g_str_hash, g_str_equal); 2078 2079 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) { 2080 for (i = 0; i < count; ++i) { 2081 buffer_size = 0; 2082 info = NULL; 2083 if (WTSQuerySessionInformationA( 2084 NULL, 2085 entries[i].SessionId, 2086 WTSSessionInfo, 2087 (LPSTR *)&info, 2088 &buffer_size 2089 )) { 2090 2091 if (strlen(info->UserName) == 0) { 2092 WTSFreeMemory(info); 2093 continue; 2094 } 2095 2096 login = info->LogonTime.QuadPart; 2097 login -= W32_FT_OFFSET; 2098 login_time = ((double)login) / QGA_NANOSECONDS; 2099 2100 if (g_hash_table_contains(cache, info->UserName)) { 2101 value = g_hash_table_lookup(cache, info->UserName); 2102 user = (GuestUser *)value; 2103 if (user->login_time > login_time) { 2104 user->login_time = login_time; 2105 } 2106 } else { 2107 user = g_new0(GuestUser, 1); 2108 2109 user->user = g_strdup(info->UserName); 2110 user->domain = g_strdup(info->Domain); 2111 user->has_domain = true; 2112 2113 user->login_time = login_time; 2114 2115 g_hash_table_add(cache, user->user); 2116 2117 QAPI_LIST_APPEND(tail, user); 2118 } 2119 } 2120 WTSFreeMemory(info); 2121 } 2122 WTSFreeMemory(entries); 2123 } 2124 g_hash_table_destroy(cache); 2125 return head; 2126 } 2127 2128 typedef struct _ga_matrix_lookup_t { 2129 int major; 2130 int minor; 2131 char const *version; 2132 char const *version_id; 2133 } ga_matrix_lookup_t; 2134 2135 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][7] = { 2136 { 2137 /* Desktop editions */ 2138 { 5, 0, "Microsoft Windows 2000", "2000"}, 2139 { 5, 1, "Microsoft Windows XP", "xp"}, 2140 { 6, 0, "Microsoft Windows Vista", "vista"}, 2141 { 6, 1, "Microsoft Windows 7" "7"}, 2142 { 6, 2, "Microsoft Windows 8", "8"}, 2143 { 6, 3, "Microsoft Windows 8.1", "8.1"}, 2144 { 0, 0, 0} 2145 },{ 2146 /* Server editions */ 2147 { 5, 2, "Microsoft Windows Server 2003", "2003"}, 2148 { 6, 0, "Microsoft Windows Server 2008", "2008"}, 2149 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, 2150 { 6, 2, "Microsoft Windows Server 2012", "2012"}, 2151 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, 2152 { 0, 0, 0}, 2153 { 0, 0, 0} 2154 } 2155 }; 2156 2157 typedef struct _ga_win_10_0_t { 2158 int first_build; 2159 char const *version; 2160 char const *version_id; 2161 } ga_win_10_0_t; 2162 2163 static ga_win_10_0_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = { 2164 {14393, "Microsoft Windows Server 2016", "2016"}, 2165 {17763, "Microsoft Windows Server 2019", "2019"}, 2166 {20344, "Microsoft Windows Server 2022", "2022"}, 2167 {0, 0} 2168 }; 2169 2170 static ga_win_10_0_t const WIN_10_0_CLIENT_VERSION_MATRIX[3] = { 2171 {10240, "Microsoft Windows 10", "10"}, 2172 {22000, "Microsoft Windows 11", "11"}, 2173 {0, 0} 2174 }; 2175 2176 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp) 2177 { 2178 typedef NTSTATUS(WINAPI *rtl_get_version_t)( 2179 RTL_OSVERSIONINFOEXW *os_version_info_ex); 2180 2181 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); 2182 2183 HMODULE module = GetModuleHandle("ntdll"); 2184 PVOID fun = GetProcAddress(module, "RtlGetVersion"); 2185 if (fun == NULL) { 2186 error_setg(errp, QERR_QGA_COMMAND_FAILED, 2187 "Failed to get address of RtlGetVersion"); 2188 return; 2189 } 2190 2191 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; 2192 rtl_get_version(info); 2193 return; 2194 } 2195 2196 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id) 2197 { 2198 DWORD major = os_version->dwMajorVersion; 2199 DWORD minor = os_version->dwMinorVersion; 2200 DWORD build = os_version->dwBuildNumber; 2201 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); 2202 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx]; 2203 ga_win_10_0_t const *win_10_0_table = tbl_idx ? 2204 WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX; 2205 ga_win_10_0_t const *win_10_0_version = NULL; 2206 while (table->version != NULL) { 2207 if (major == 10 && minor == 0) { 2208 while (win_10_0_table->version != NULL) { 2209 if (build >= win_10_0_table->first_build) { 2210 win_10_0_version = win_10_0_table; 2211 } 2212 win_10_0_table++; 2213 } 2214 if (win_10_0_table) { 2215 if (id) { 2216 return g_strdup(win_10_0_version->version_id); 2217 } else { 2218 return g_strdup(win_10_0_version->version); 2219 } 2220 } 2221 } else if (major == table->major && minor == table->minor) { 2222 if (id) { 2223 return g_strdup(table->version_id); 2224 } else { 2225 return g_strdup(table->version); 2226 } 2227 } 2228 ++table; 2229 } 2230 slog("failed to lookup Windows version: major=%lu, minor=%lu", 2231 major, minor); 2232 return g_strdup("N/A"); 2233 } 2234 2235 static char *ga_get_win_product_name(Error **errp) 2236 { 2237 HKEY key = INVALID_HANDLE_VALUE; 2238 DWORD size = 128; 2239 char *result = g_malloc0(size); 2240 LONG err = ERROR_SUCCESS; 2241 2242 err = RegOpenKeyA(HKEY_LOCAL_MACHINE, 2243 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 2244 &key); 2245 if (err != ERROR_SUCCESS) { 2246 error_setg_win32(errp, err, "failed to open registry key"); 2247 g_free(result); 2248 return NULL; 2249 } 2250 2251 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2252 (LPBYTE)result, &size); 2253 if (err == ERROR_MORE_DATA) { 2254 slog("ProductName longer than expected (%lu bytes), retrying", 2255 size); 2256 g_free(result); 2257 result = NULL; 2258 if (size > 0) { 2259 result = g_malloc0(size); 2260 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2261 (LPBYTE)result, &size); 2262 } 2263 } 2264 if (err != ERROR_SUCCESS) { 2265 error_setg_win32(errp, err, "failed to retrive ProductName"); 2266 goto fail; 2267 } 2268 2269 RegCloseKey(key); 2270 return result; 2271 2272 fail: 2273 if (key != INVALID_HANDLE_VALUE) { 2274 RegCloseKey(key); 2275 } 2276 g_free(result); 2277 return NULL; 2278 } 2279 2280 static char *ga_get_current_arch(void) 2281 { 2282 SYSTEM_INFO info; 2283 GetNativeSystemInfo(&info); 2284 char *result = NULL; 2285 switch (info.wProcessorArchitecture) { 2286 case PROCESSOR_ARCHITECTURE_AMD64: 2287 result = g_strdup("x86_64"); 2288 break; 2289 case PROCESSOR_ARCHITECTURE_ARM: 2290 result = g_strdup("arm"); 2291 break; 2292 case PROCESSOR_ARCHITECTURE_IA64: 2293 result = g_strdup("ia64"); 2294 break; 2295 case PROCESSOR_ARCHITECTURE_INTEL: 2296 result = g_strdup("x86"); 2297 break; 2298 case PROCESSOR_ARCHITECTURE_UNKNOWN: 2299 default: 2300 slog("unknown processor architecture 0x%0x", 2301 info.wProcessorArchitecture); 2302 result = g_strdup("unknown"); 2303 break; 2304 } 2305 return result; 2306 } 2307 2308 GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 2309 { 2310 Error *local_err = NULL; 2311 OSVERSIONINFOEXW os_version = {0}; 2312 bool server; 2313 char *product_name; 2314 GuestOSInfo *info; 2315 2316 ga_get_win_version(&os_version, &local_err); 2317 if (local_err) { 2318 error_propagate(errp, local_err); 2319 return NULL; 2320 } 2321 2322 server = os_version.wProductType != VER_NT_WORKSTATION; 2323 product_name = ga_get_win_product_name(errp); 2324 if (product_name == NULL) { 2325 return NULL; 2326 } 2327 2328 info = g_new0(GuestOSInfo, 1); 2329 2330 info->has_kernel_version = true; 2331 info->kernel_version = g_strdup_printf("%lu.%lu", 2332 os_version.dwMajorVersion, 2333 os_version.dwMinorVersion); 2334 info->has_kernel_release = true; 2335 info->kernel_release = g_strdup_printf("%lu", 2336 os_version.dwBuildNumber); 2337 info->has_machine = true; 2338 info->machine = ga_get_current_arch(); 2339 2340 info->has_id = true; 2341 info->id = g_strdup("mswindows"); 2342 info->has_name = true; 2343 info->name = g_strdup("Microsoft Windows"); 2344 info->has_pretty_name = true; 2345 info->pretty_name = product_name; 2346 info->has_version = true; 2347 info->version = ga_get_win_name(&os_version, false); 2348 info->has_version_id = true; 2349 info->version_id = ga_get_win_name(&os_version, true); 2350 info->has_variant = true; 2351 info->variant = g_strdup(server ? "server" : "client"); 2352 info->has_variant_id = true; 2353 info->variant_id = g_strdup(server ? "server" : "client"); 2354 2355 return info; 2356 } 2357 2358 /* 2359 * Safely get device property. Returned strings are using wide characters. 2360 * Caller is responsible for freeing the buffer. 2361 */ 2362 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName, 2363 PDEVPROPTYPE propType) 2364 { 2365 CONFIGRET cr; 2366 g_autofree LPBYTE buffer = NULL; 2367 ULONG buffer_len = 0; 2368 2369 /* First query for needed space */ 2370 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2371 buffer, &buffer_len, 0); 2372 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) { 2373 2374 slog("failed to get property size, error=0x%lx", cr); 2375 return NULL; 2376 } 2377 buffer = g_new0(BYTE, buffer_len + 1); 2378 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2379 buffer, &buffer_len, 0); 2380 if (cr != CR_SUCCESS) { 2381 slog("failed to get device property, error=0x%lx", cr); 2382 return NULL; 2383 } 2384 return g_steal_pointer(&buffer); 2385 } 2386 2387 static GStrv ga_get_hardware_ids(DEVINST devInstance) 2388 { 2389 GArray *values = NULL; 2390 DEVPROPTYPE cm_type; 2391 LPWSTR id; 2392 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance, 2393 &qga_DEVPKEY_Device_HardwareIds, &cm_type); 2394 if (property == NULL) { 2395 slog("failed to get hardware IDs"); 2396 return NULL; 2397 } 2398 if (*property == '\0') { 2399 /* empty list */ 2400 return NULL; 2401 } 2402 values = g_array_new(TRUE, TRUE, sizeof(gchar *)); 2403 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) { 2404 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL); 2405 g_array_append_val(values, id8); 2406 } 2407 return (GStrv)g_array_free(values, FALSE); 2408 } 2409 2410 /* 2411 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices 2412 */ 2413 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)" 2414 2415 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 2416 { 2417 GuestDeviceInfoList *head = NULL, **tail = &head; 2418 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 2419 SP_DEVINFO_DATA dev_info_data; 2420 int i, j; 2421 GError *gerr = NULL; 2422 g_autoptr(GRegex) device_pci_re = NULL; 2423 DEVPROPTYPE cm_type; 2424 2425 device_pci_re = g_regex_new(DEVICE_PCI_RE, 2426 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0, 2427 &gerr); 2428 g_assert(device_pci_re != NULL); 2429 2430 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 2431 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES); 2432 if (dev_info == INVALID_HANDLE_VALUE) { 2433 error_setg(errp, "failed to get device tree"); 2434 return NULL; 2435 } 2436 2437 slog("enumerating devices"); 2438 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 2439 bool skip = true; 2440 g_autofree LPWSTR name = NULL; 2441 g_autofree LPFILETIME date = NULL; 2442 g_autofree LPWSTR version = NULL; 2443 g_auto(GStrv) hw_ids = NULL; 2444 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1); 2445 g_autofree char *vendor_id = NULL; 2446 g_autofree char *device_id = NULL; 2447 2448 name = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2449 &qga_DEVPKEY_NAME, &cm_type); 2450 if (name == NULL) { 2451 slog("failed to get device description"); 2452 continue; 2453 } 2454 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL); 2455 if (device->driver_name == NULL) { 2456 error_setg(errp, "conversion to utf8 failed (driver name)"); 2457 return NULL; 2458 } 2459 slog("querying device: %s", device->driver_name); 2460 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst); 2461 if (hw_ids == NULL) { 2462 continue; 2463 } 2464 for (j = 0; hw_ids[j] != NULL; j++) { 2465 g_autoptr(GMatchInfo) match_info; 2466 GuestDeviceIdPCI *id; 2467 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) { 2468 continue; 2469 } 2470 skip = false; 2471 2472 vendor_id = g_match_info_fetch(match_info, 1); 2473 device_id = g_match_info_fetch(match_info, 2); 2474 2475 device->id = g_new0(GuestDeviceId, 1); 2476 device->has_id = true; 2477 device->id->type = GUEST_DEVICE_TYPE_PCI; 2478 id = &device->id->u.pci; 2479 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16); 2480 id->device_id = g_ascii_strtoull(device_id, NULL, 16); 2481 2482 break; 2483 } 2484 if (skip) { 2485 continue; 2486 } 2487 2488 version = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2489 &qga_DEVPKEY_Device_DriverVersion, &cm_type); 2490 if (version == NULL) { 2491 slog("failed to get driver version"); 2492 continue; 2493 } 2494 device->driver_version = g_utf16_to_utf8(version, -1, NULL, 2495 NULL, NULL); 2496 if (device->driver_version == NULL) { 2497 error_setg(errp, "conversion to utf8 failed (driver version)"); 2498 return NULL; 2499 } 2500 device->has_driver_version = true; 2501 2502 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst, 2503 &qga_DEVPKEY_Device_DriverDate, &cm_type); 2504 if (date == NULL) { 2505 slog("failed to get driver date"); 2506 continue; 2507 } 2508 device->driver_date = filetime_to_ns(date); 2509 device->has_driver_date = true; 2510 2511 slog("driver: %s\ndriver version: %" PRId64 ",%s\n", 2512 device->driver_name, device->driver_date, 2513 device->driver_version); 2514 QAPI_LIST_APPEND(tail, g_steal_pointer(&device)); 2515 } 2516 2517 if (dev_info != INVALID_HANDLE_VALUE) { 2518 SetupDiDestroyDeviceInfoList(dev_info); 2519 } 2520 return head; 2521 } 2522 2523 char *qga_get_host_name(Error **errp) 2524 { 2525 wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1]; 2526 DWORD size = G_N_ELEMENTS(tmp); 2527 2528 if (GetComputerNameW(tmp, &size) == 0) { 2529 error_setg_win32(errp, GetLastError(), "failed close handle"); 2530 return NULL; 2531 } 2532 2533 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL); 2534 } 2535